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Post by FrankenMech on Feb 16, 2020 19:38:57 GMT -5
What happened to it?
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Post by jloi on Feb 16, 2020 20:21:44 GMT -5
there's 2 small v shaped clamps which the handles screw into. I just got a bad one I guess . clamps wouldn't stay in place . bad threads in my tap and die handle ha ha. guess I could have rethreaded the handle and threaded part of the clamps to a finer thread .
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Post by jloi on Feb 16, 2020 23:17:34 GMT -5
once I got past the coils it didn't take long to pack the bearings and get everything back on the front end and clean all the excess grease off around the forks.I forgot to take pix of the bearing re pack . no baggy. I pushed as much in as I could . The head on these bolts is 17mm; they're just temporary till I get a pack of 10 from Mcmaster Carr . I torqued them to 46ft/lbs. when I get the new bolts then I'll go with some blue loctite. I have no idea why I had to spread the clamps with screwdrivers; but I did - they wouldn't go in otherwise . The handle bar and wheel falls over to either side real nice. no more rubbing or squeak from the column .
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Post by 2stroked on Feb 17, 2020 19:16:54 GMT -5
Nice! The only that matters is that its done, and you're happy. Glad you decided to clean and repack those bearings. It was the right choice.
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Post by ThaiGyro on Mar 14, 2020 6:51:21 GMT -5
Replacement part quality may vary... Heli-coils would reduce the wall thickness, worse if you didn't get the taps straight. I might just clean the existing threads and surfaces to remove burrs, get longer grade 10.8 or 12.8 SHCS bolts with hard washers for under the heads and nuts then use red Loctite at assy with matching grade added nuts. Just my from a dufus that has never worked on a triple tree. In my experiences, the above is not correct. The proper method requires either re-drilling and/or re-tapping the threaded holes, to the coil specs, so when the heli-coil is inserted, it is the correct original pitch and diameter. Testing proves that this method is stronger than original in most cases. Yes, I have had heli-coil failures. All of them on aluminum with poor installation. Bonding or drilling issues. Drilling is a talent. Not easy.
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Post by FrankenMech on Mar 14, 2020 16:11:26 GMT -5
The reduction in wall thickness with heli-coils will reduce strength in thin wall castings. Heli-coils are not stronger in that situation. Strength testing is done with thick walls or plate, not what is shown in the pictures. I agree that drilling is a talent few possess. Most people don't have the right equipment or skills.
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Post by 2stroked on Mar 17, 2020 9:48:21 GMT -5
The reduction in wall thickness with heli-coils will reduce strength in thin wall castings. Heli-coils are not stronger in that situation. Strength testing is done with thick walls or plate, not what is shown in the pictures. I agree that drilling is a talent few possess. Most people don't have the right equipment or skills. Yeah, the best tools and no skill, or good skill, and shit tools, or good tools and no patience. None are a good mix. That said, *ahem* FUCK HELICOILS. thank you. Sure, thick material, and perfect technique will be stronger than just the threads. BUT, that's not most real world applications. I would rather dill and redrill, or drill and retap, whichever would work best for a scenario. Helicoils are over priced, and worse, over depended on. Too many people see that advertisement that touts "stronger than original" and think its always true. Then they half ass the install, and are just appalled that it fails. I've used them successfully, and I've had them fail. In the cases they failed, I was sure they would work great. Thick surrounding material, perfect straight drilled hole, beautiful threads, and usually within a few hours, bang, its out. Hole is mangled, parts destroyed. Will never helicoil aluminum again, not worth the hassle. Unless its an irreplaceable part. Ugh....helicoils...:shudders:
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Post by FrankenMech on Mar 17, 2020 15:31:18 GMT -5
Right, even with good tools and skills it is all too easy to bungle a helicoil. That is why I advocated cleaning up the existing threads in this instance, with a regular tap or thread restorer, and using longer bolts and a nut. A triple tree is already engineered down to a minimum wall thickness to save weight. Reducing it more with an oversize tap and drill, possibly off center or crooked, to install a helicoil is just asking for trouble.
The triple tree joint is a life safety part.
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